WO2020228620A1 - 一种排水管道的冲洗、检修系统及冲洗方法、检修方法 - Google Patents

一种排水管道的冲洗、检修系统及冲洗方法、检修方法 Download PDF

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Publication number
WO2020228620A1
WO2020228620A1 PCT/CN2020/089300 CN2020089300W WO2020228620A1 WO 2020228620 A1 WO2020228620 A1 WO 2020228620A1 CN 2020089300 W CN2020089300 W CN 2020089300W WO 2020228620 A1 WO2020228620 A1 WO 2020228620A1
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Prior art keywords
drainage pipe
drainage
upstream
downstream
pipe
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PCT/CN2020/089300
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English (en)
French (fr)
Inventor
周超
李习洪
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武汉圣禹排水系统有限公司
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Publication of WO2020228620A1 publication Critical patent/WO2020228620A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/04—Pipes or fittings specially adapted to sewers
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/02—Shut-off devices
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing
    • E03F9/007—Devices providing a flushing surge

Definitions

  • the invention relates to the technical field of drainage, in particular to a flushing and overhauling system, flushing method and overhauling method of a drainage pipe.
  • the current drainage pipeline has serious accumulation of mud and excessive accumulation of mud, which seriously hinders the flood discharge capacity of the drainage pipeline. Therefore, the pipeline needs to be cleaned regularly.
  • the current domestic cleaning method is to install flushing equipment in the pipeline such as micro-retention gates, Open weir doors, eccentric block doors, and the environment in the drainage pipes are harsh.
  • the door panels of these devices are submerged in sewage. Due to various floating objects, particles and silt in the sewage, the door panel and the door frame are easily blocked and jammed, causing the door panel A mechanical failure occurred with the door frame.
  • most of the drive mechanisms of these devices use electric drive mechanisms or hydraulic drive mechanisms.
  • the drive mechanisms are used in underwater environments, which require high sealing performance and increase costs.
  • the electric drive mechanism has the risk of leakage and causes electrical failures.
  • the hydraulic drive mechanism Leakage will cause water pollution and poor reliability.
  • the flushing equipment used in the prior art requires external power to control the opening and closing, such as an electric drive mechanism or a hydraulic drive mechanism.
  • the drive mechanism fails The device may be parked in the closed position and cannot be turned on.
  • the power fails or the machine is stuck, the device is parked in the closed position and cannot be turned on automatically.
  • the purpose of the present invention is to overcome the deficiencies of the above-mentioned background technology and provide a drainage pipeline flushing and repairing system, flushing method, and repairing method, which can meet the needs of flushing and repairing, and has a simple structure, safe and reliable, and wide application range. advantage.
  • the present invention provides a drainage pipeline flushing and maintenance system, which has an inclined drainage pipeline, and a plurality of inspection wells and a plurality of intercepting devices are arranged at intervals along the drainage pipeline.
  • the inspection well is provided with a water inlet connected to its upstream drainage pipe and a water outlet connected to its downstream drainage pipe;
  • a shut-off device is installed in the inspection well, and the shut-off device includes an outer shell and a rubber sleeve, so The rubber sleeve is installed in the outer shell, and the rubber sleeve has a water flow channel, which is connected to an upstream drainage pipe and a downstream drainage pipe through the water inlet and the water outlet respectively; when the shutoff device is inflated Or when water is filled, the rubber sleeve is deformed, the cross-sectional area of the water flow channel becomes smaller and the water flow channel is cut off, the shutoff device is closed, and the upstream drainage pipe and its downstream drainage pipe are shut off.
  • the shutoff device deflates or discharge
  • the control system includes a liquid level sensor and a controller.
  • the liquid level sensor is respectively arranged upstream and downstream of the interception device for monitoring the upstream drainage of the interception device.
  • the liquid level of the pipeline and the liquid level of the downstream drainage pipeline the controller is respectively connected to the liquid level sensor and the interception device, the controller is provided with a liquid level difference threshold, and the controller is used to control the interception
  • the upstream drainage pipe of the interception device stores water
  • the level difference between the liquid level of the upstream drainage pipe of the interception device and the downstream drainage pipe as monitored by the liquid level sensor reaches the level difference Threshold, controlling the shutoff device to open, and the upstream drainage pipe of the shutoff device stores water to flush the downstream drainage pipe of the shutoff device.
  • the controller is also provided with a flushing cycle.
  • the flushing cycle refers to the time interval between the completion of one flush of all drainage pipes and the opening of the next flush of all drainage pipes.
  • the controller uses The drainage pipe is controlled to be flushed regularly according to the flushing cycle.
  • the liquid level sensor is respectively installed in an inspection well connected with the drainage pipe upstream of the interception device and an inspection well connected with the drainage pipe downstream of the interception device.
  • one end of the outer shell is connected to the upstream drainage pipe, and the outer shell is at least partially installed in the water inlet.
  • one end of the outer casing is connected to a downstream drainage pipe, and the outer casing is at least partially installed in the water outlet; or, the outer casing is located in the inspection well, and both ends of the outer casing are connected to the upstream
  • the drainage pipe is connected to the downstream drainage pipe; or, both ends of the outer casing are respectively provided with flange connection plates, and both ends of the outer casing are connected to the drainage pipe through the flange connection plates; or, the Both ends of the outer shell are respectively provided with flange connecting plates, one end of the outer shell is connected with the drainage pipe through the flange connecting discs, and the other end of the outer shell is provided with a connecting sleeve, the connecting sleeve One end of the pipe close to the outer shell is connected to the outer shell through the flange connecting plate, and the other end of the connecting sleeve is
  • a gas station or a water station a main conveying pipe, a conveying branch pipe, and a solenoid valve.
  • the main conveying pipe is connected to the gas station or the water station, and the inlet of each intercepting device It is connected to the main conveying pipe through the conveying branch pipe, and each conveying branch pipe is provided with the solenoid valve, or, several gas or water stations, conveying branch pipes and solenoid valves, and the inlet of each of the intercepting devices It is connected to a gas station or a water station through the conveying branch pipe, and each conveying branch pipe is provided with the solenoid valve.
  • a method for flushing drainage pipelines uses the flushing and maintenance system described in any one of the above, and N intercepting devices are arranged along the drainage pipeline, and from downstream to upstream are the first intercepting device and the second Interceptor...The Nth interceptor, which divides the drainage pipe into N+1 sections, from downstream to upstream, is the first section of the drainage pipe, the second section of the drainage pipe...the N+1 section of the drainage pipe, S1, flushing
  • the n-th intercepting device is inflated or filled with water, the circulation channel is closed, and other intercepting devices are deflated or discharged in an open state, 1 ⁇ n ⁇ N, the n+1 section of the drainage pipe and its upstream drainage pipe are stored Water, the nth section of the drainage pipe and its downstream drainage pipe are emptied; S2, the nth intercepting device is vented or discharged, the circulation channel is opened, and the n+1 section of the drainage pipe and its upstream drainage pipe are filled with water to
  • the upstream and downstream of the nth intercepting device are equipped with liquid level sensors, and the liquid level sensor monitors the liquid level upstream and downstream of the nth intercepting device in real time, respectively.
  • Level value and the second downstream level value and calculate the difference between the first level value and the second level value to obtain the level difference, preset the level difference threshold; when the level difference reaches the level difference threshold, Control the n-th interception device to deflate or discharge water, open the circulation channel, and store water in the n+1 section of the drainage pipe and its upstream drainage pipe to flush the n-th drainage pipe and its downstream drainage pipe.
  • a drainage pipeline maintenance method uses the flushing and maintenance system according to any one of claims 1 to 8, and N intercepting devices are arranged along the drainage pipeline, and the first one is from downstream to upstream.
  • the intercepting device, the second intercepting device...the Nth intercepting device which divides the drainage pipe into N+1 sections, from downstream to upstream, the first section of the drainage pipe, the second section of the drainage pipe...the N+1 section of the drainage pipe ;
  • When repairing the nth section of the drainage pipe as needed close the nth intercepting device and the n+1th intercepting device, and empty the nth section of the drainage pipe; when repairing certain sections of the continuous drainage pipe as needed, it will be close to the lowest point of the drainage pipe.
  • the shut-off devices at the downstream end and the most upstream end are closed, and the drainage pipe is emptied.
  • a shutoff device is provided in the drainage pipe.
  • the shutoff device includes an outer shell and a rubber sleeve.
  • An air cavity or water cavity is formed between the rubber sleeve and the outer shell.
  • the deformation of the sleeve controls the conduction or cut-off of the flow channel, thereby controlling the closing or opening of the intercepting device.
  • the mechanical structure is simple, the control is convenient, and there are few failures. It can meet the flood discharge requirements while completing pipeline flushing.
  • the outer casing of the drainage pipeline flushing and overhauling system of the present invention is connected to the connected drainage pipeline through a connecting sleeve.
  • the shutoff device When the shutoff device is installed, it is hoisted from the upper part of the inspection well into the inspection well, and one end of the outer casing passes through the flange
  • the connecting plate is connected to the drain pipe, and the connecting sleeve is installed in the drain pipe.
  • the intercepting device is hoisted in place, connect the outer end of the connecting sleeve and the outer shell through the flange connecting plate, leaving enough installation space for easy installation operating.
  • the interception device is installed in the inspection well, no additional foundation excavation is required, and the construction efficiency is high and the construction cost is low.
  • the intercepting device in the drainage pipeline flushing and overhauling system of the present invention can also be used for blocking during overhaul, has various uses, has a wide application range, does not require additional installation equipment, reduces overhaul costs, and is convenient to operate.
  • a drainage pipeline flushing method of the present invention can be controlled by the liquid level method and/or time method.
  • the interception device When the upstream water storage height reaches the set liquid level, the interception device is opened to flush the drainage pipe downstream of the interception device, relying on the interception
  • the potential energy of the liquid level difference between the upstream and downstream of the device is instantaneously converted into the kinetic energy of flushing, and the downstream drainage pipeline is flushed.
  • the flushing effect is good. It is automatically flushed regularly and has a high degree of automation.
  • Figure 1 is a schematic diagram of the structure of the present invention in use.
  • Figure 2 is a top view of an inspection well of the present invention.
  • Figure 3 is a schematic structural diagram of the interception device installed at the entrance and exit of the present invention.
  • Figure 4 is a schematic diagram of the structure of the intercepting device installed at the water outlet of the present invention.
  • the present invention provides a drainage pipeline flushing and overhauling system, which has an inclined drainage pipeline 3, a number of inspection wells 1 and a number of interception devices 2 are arranged at intervals along the drainage pipeline 3, wherein the interception device 2
  • the number of installations is set according to the inclination and length of the drainage pipe 3.
  • the inspection well 1 includes a well structure and a water inlet 10 connected to its upstream drainage pipe and an outlet connected to its downstream drainage pipe.
  • Water outlet 11 in this embodiment, it is defined that when the drainage pipe transports water, the water flow time at the location of the intercepting device 2 is used as the reference point.
  • the pipe diameter that flows before this time is the upstream drainage pipe, and it flows after this time.
  • the pipe diameter is the downstream drainage pipe.
  • the interception device 2 is installed in an inspection well 1.
  • the interception device 2 includes an outer casing 20 and a rubber sleeve 21.
  • the rubber sleeve 21 is installed in the outer casing 20, and an air cavity is formed between the rubber sleeve 21 and the outer casing 20.
  • the rubber sleeve 21 has a water flow channel 22, one end of the water flow channel 22 is connected to the upstream drainage pipe through the water inlet 10; the other end is connected to the downstream drainage pipe through the water outlet 11; as a modification, the rubber sleeve 21 in this embodiment adopts
  • the integral structure has an annular cross-section and an air cavity or a water cavity is provided inside, and the rubber sleeve 21 is installed in the outer casing 20;
  • the rubber sleeve 21 deforms, the cross-sectional area of the water flow channel 22 becomes smaller, and the upstream drainage pipe and the downstream drainage pipe are blocked.
  • the rubber sleeve The cylinder 21 recovers from deformation, the cross-sectional area of the water flow channel 22 becomes larger, the upstream drainage pipe of the intercepting device 2 is connected to the downstream drainage pipe, and the rubber sleeve 21 is restored to the bottom of the water flow channel 22 and its upstream drainage pipe in an undeformed state. The bottom is flush.
  • connection between the outer casing 20 and the drainage pipe is as follows: flange connecting plates 23 may be respectively provided at both ends of the outer casing 20, and both ends of the outer casing 20 are connected to the drainage pipe through the flange connecting plates 23.
  • the outer casing 20 is installed in the inspection well 1.
  • the upstream end of the outer casing 20 is connected to the drainage pipe upstream of the outer casing 20 through a flange connecting plate 23, and the downstream or upstream end of the outer casing 20 is connected with
  • the sleeve 24, one end of the connecting sleeve 24 close to the outer casing 20 is connected to a section of the outer casing 20 through a flange connecting plate 23, and the other end of the connecting sleeve 24 is sleeved in the drain pipe connected to it.
  • One end of the outer shell 20 is connected to the drainage pipe through the flange connecting plate 23, and the bottom of the rubber sleeve 21 is flush with the bottom of the upstream drainage pipe.
  • the cylinder 21 smoothly transitions the bottom of the rubber sleeve 21 to the bottom of the downstream drainage pipe.
  • the outer casing 20 is installed in the water inlet 10, and the upstream end of the outer casing 20 is connected to its upstream drainage pipe through a flange connecting plate 23, and the downstream end of the outer casing 20 is located in the inspection well 2.
  • the outer casing 20 is installed in the water outlet 11, and the downstream end of the outer casing 20 is connected to its downstream drainage pipe through a flange connecting plate 23, and the upstream end of the outer casing 20 is located in the inspection well 2.
  • the connection modes of the outer casing 20 and the drainage pipe are diversified.
  • the connection can also be made by welding, clamping, coupling, etc.
  • the system also includes: a gas station or a water station, a main conveying pipe, a conveying branch pipe, and a solenoid valve.
  • the main conveying pipe is connected to the gas or water station, and the inlet of each intercepting device 2 is connected to the main conveying pipe through a conveying branch pipe.
  • each conveying branch pipe is equipped with a solenoid valve.
  • multiple intercepting devices 2 share a gas station or water station, which saves energy and has a small area.
  • several gas stations or water stations, transportation branch pipes and solenoid valves are provided, the inlet of each intercepting device 2 is connected to a gas station or water station through a transportation branch pipe, and each transportation branch pipe is provided with the solenoid valve.
  • the system also includes a control system: the system includes a liquid level sensor and a controller.
  • the liquid level sensor is respectively arranged upstream and downstream of the interception device 2 for monitoring the liquid level of the upstream drainage pipe and the downstream drainage pipe of the interception device 2.
  • the controller is respectively connected to the liquid level sensor and the intercepting device 2.
  • the controller is equipped with a liquid level difference threshold. The controller is used to control the closing of the intercepting device 2 and the circulation channel 22 is cut off.
  • the upstream drainage pipe of the intercepting device 2 stores water when The liquid level sensor detects that the liquid level difference between the upstream drainage pipe of the intercepting device 2 and the downstream drainage pipe reaches the liquid level difference threshold, and controls the intercepting device 2 to open, the circulation channel 22 is turned on, and the storage in the upstream drainage pipe Water flushes the drainage pipe downstream of the intercepting device 2.
  • the shutoff device 2 is automatically controlled to open or close through the controller and the liquid level sensor, and the operation is simple and the degree of automation is high.
  • the liquid level sensor in this embodiment is installed in the inspection well connected with the drainage pipe upstream of the interception device 2 and the inspection well connected with the drainage pipe downstream of the interception device 2 respectively.
  • the liquid level sensor in this embodiment is selected from the "Siemens Ultrasonic Liquid Level Gauge Selection Manual" according to actual usage, and the controller is selected from the "PLC Selection Manual" according to actual usage.
  • the controller is also provided with a flushing period, the flushing period refers to the time interval between all the drainage pipes after completing one flushing and the next flushing of all the drainage pipes, and the controller is used according to the flushing cycle
  • the drain pipe is controlled to be flushed regularly, and the controller starts timing after the last shutoff device is turned on. Set up regular automatic flushing to avoid silt accumulation in the drainage pipe, ensure the flushing effect, and have a high degree of automation.
  • This embodiment 2 provides a method for flushing drainage pipes.
  • An N interception device 2 is arranged along the drainage pipe. From downstream to upstream, there are the first interception device, the second interception device...the Nth interception device, which divides the drainage pipe into N+ Section 1, from downstream to upstream is the first section of drainage pipe, the second section of drainage pipe...the N+1 section of drainage pipe;
  • the nth interception device before flushing the nth section of the drainage pipe, the nth interception device is inflated or filled with water, the circulation channel is closed, and the other interception devices are in the open state, 1 ⁇ n ⁇ N, the n+1th section of the drainage pipe and its upstream
  • the drainage pipe of the first section stores water, and the drainage pipe of the nth section and the downstream drainage pipe are emptied;
  • the n-th interception device deflates or discharges water, the circulation channel is opened, and the n+1 section of drainage pipe and the upstream drainage pipe store water to flush the nth section of drainage pipe and its downstream drainage pipe;
  • the upstream and downstream of the nth intercepting device are equipped with liquid level sensors.
  • the control method of S1 is as follows: the liquid level sensor monitors the liquid level upstream and downstream of the nth intercepting device in real time, which are the first liquid level value and the downstream first Two liquid level values and calculate the difference between the first liquid level value and the second liquid level value to obtain the liquid level difference, preset the liquid level difference threshold; when the liquid level difference reaches the liquid level difference threshold, control the nth intercepting device to deflate or Drain the water, open the circulation channel, and store water in the n+1 section of the drainage pipe and the upstream drainage pipe to flush the nth section of the drainage pipe and the downstream drainage pipe.
  • the circulation channel is opened, and after all the drainage pipes are flushed once, the controller again controls the first intercepting device to inflate or fill water, the circulation channel is closed, and the first intercepting device upstream
  • the drainage pipeline stores water to prepare for the next flushing; the controller starts timing from the completion of the air or water discharge of the Nth intercepting device intercepting device, and when the timer reaches the set flushing cycle, it enters the next flushing cycle.
  • This embodiment provides a drainage pipeline inspection and repair method.
  • an N interception device 2 is arranged along the drainage pipeline. From downstream to upstream, there are the first interception device, the second interception device...
  • the Nth interception device divides the drainage pipe into N+1 sections, from downstream to upstream, the first section of the drainage pipe, the second section of the drainage pipe...the N+1 section of the drainage pipe;
  • the nth intercepting device and the n+1th intercepting device are inflated or closed with water, the nth drainage pipe is cut off at its upstream and downstream drainage pipes, and the nth drainage pipe Emptying

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Abstract

本发明公开了一种排水管道的冲洗、检修系统及冲洗方法、检修方法，沿排水管道间隔设置检查井和截流装置，检查井设有连接其上游排水管道的进水口和连接其下游排水管道的出水口；一截流装置安装于一检查井内，截流装置包括外壳体和橡胶套筒，橡胶套筒安装于外壳体内，橡胶套筒与外壳体之间形成气腔或者水腔，橡胶套筒具有水流通道，水流通道的一端通过进水口连通上游排水管道；另一端通过出水口连通下游排水管道；当截流装置充气或充水时，截流装置关闭，其上游排水管道于下游排水管截止，当截流装置放气或放水时，橡截流装置打开，其上游排水管道与下游排水管道导通。

Description

一种排水管道的冲洗、检修系统及冲洗方法、检修方法
相关申请的交叉引用
本申请要求于2019年5月14日提交、申请号为201910399432.7且名称为“一种排水管道的冲洗、检修系统及冲洗方法、检修方法”的中国专利申请的优先权，其全部内容通过引用合并于此。
技术领域
本发明涉及排水技术领域，具体涉及一种排水管道的冲洗、检修系统及冲洗方法、检修方法。
背景技术
目前的排水管道积泥严重，积泥过多，严重阻碍排水管道的行洪能力，所以需要对管道进行定期清理，目前国内采用的清理方式是在管道中设置冲洗设备如如微型拦蓄门、下开式堰门、偏心堵门，排水管内的环境较为恶劣，这些设备的门板淹没在污水里面，由于污水中有各种漂浮物、颗粒物和淤泥，门板与门框之间容易堵塞卡死，造成门板与门框之间发生机械故障。另外，这些设备的驱动机构大多采用电动驱动机构或液动驱动机构，驱动机构应用在水下环境，密封性要求较高，增加成本，且电动驱动机构存在漏电危险造成电气故障，液动驱动机构发生泄漏，会造成水体污染，可靠性差。
另外，对于排水管道上的设备，一定要保证行洪的安全性，现有技术中使用的冲洗设备，需要外界的动力来控制启闭如电动驱动机构或液动驱动机构，当驱动机构发生故障时，设备可能停在关闭的位置无法开启，停电或机械卡死时，设备停在关闭位置，无法自动开启，一旦出现上面的情况，当降雨时，无法安全行洪，导致城市内涝，城市积水，安全系数低。
现有技术中对管道进行检修时，使用活动气囊在检修位置的两侧 封堵管道，气囊活动安装。因为气囊放气后的体积较大，不能安装在排水管道中，会影响管道排水。因此，工作人员每次检修均需要携带气囊，对于管径较大的排水管，需要使用的气囊的体积也较大重量较重，需要使用机械设备进行吊装，检修作业成本高，操作难。
发明内容
本发明的目的是为了克服上述背景技术的不足，提供一种排水管道的冲洗、检修系统及冲洗方法、检修方法，能够满足冲洗和检修的使用需求，具有结构简单，安全可靠和适用范围广的优点。
本发明提供一种排水管道的冲洗、检修系统，具有倾斜设置的排水管道，沿所述排水管道间隔设置若干检查井和若干截流装置。所述检查井设有连接其上游排水管道的进水口和连接其下游排水管道的出水口；一所述截流装置安装于一所述检查井内，所述截流装置包括外壳体和橡胶套筒，所述橡胶套筒安装于所述外壳体内，所述橡胶套筒具有水流通道，所述水流通道通过所述进水口和所述出水口分别连通上游排水管道和下游排水管道；当所述截流装置充气或充水时，所述橡胶套筒形变，所述水流通道的截面积变小截止，所述截流装置关闭，上游排水管道与其下游排水管截止，当所述截流装置放气或放水时，所述橡胶套筒恢复形变，所述水流通道的截面积变大导通，所述截流装置开启，上游排水管道与其下游排水管道导通。
在上述技术方案的基础上，还包括控制系统：该控制系统包括液位传感器和控制器，所述液位传感器分别设置于所述截流装置的上游和下游，用于监测所述截流装置上游排水管道的液位和下游排水管道的液位，所述控制器分别连接所述液位传感器和所述截流装置，所述控制器内设有液位差阈值，所述控制器用于控制所述截流装置关闭，所述截流装置上游排水管道蓄水，当所述液位传感器监测到的所述截流装置上游排水管的液位和下游排水管的液位的液位差值达到所述液位差阈值，控制该所述截流装置打开，所述截流装置上游排水管道蓄水冲洗该所述截 流装置下游排水管。
在上述技术方案的基础上，所述控制器内还设置有冲洗周期，所述冲洗周期是指所有排水管道完成一次冲洗后与所有排水管道下一次冲洗开启之间的时间间隔，所述控制器用于根据所述冲洗周期控制所述排水管道定期冲洗。
在上述技术方案的基础上，所述液位传感器分别安装于与所述截流装置上游排水管道连通的检查井和与所述截流装置下游排水管道连通的检查井。
在上述技术方案的基础上，所述外壳体的一端与上游排水管道对接，所述外壳体至少部分安装于所述进水口内。或，所述外壳体的一端与下游排水管道对接，所述外壳体至少部分安装于所述出水口内；或，所述外壳体位于所述检查井内，且所述外壳体的两端分别与上游排水管道和下游排水管道对接；或，所述外壳体的两端分别设有法兰连接盘，所述外壳体的两端通过所述法兰连接盘与所述排水管道相连；或，所述外壳体的两端分别设有法兰连接盘，所述外壳体的一端通过所述法兰连接盘与所述排水管道相连，所述外壳体的另一端设有连接套管，所述连接套管靠近所述外壳体的一端通过所述法兰连接盘连接所述外壳体，所述连接套管的另一端套设在与其相连的排水管道内；或，所述外壳体的一端设有法兰连接盘，所述外壳体的一端通过所述法兰连接盘与上游排水管道或下游排水管道的端部连接。
在上述技术方案的基础上，其中，所述橡胶套筒恢复至无形变状态，所述水流通道的底部与其上游或下游排水管道的底部平齐。
在上述技术方案的基础上，还包括：气站或者水站、输送干管、输送支管和电磁阀，所述输送干管与所述气站或者水站相连，每一所述截流装置的入口通过所述输送支管与所述输送干管相连，且每一所述输送支管设有所述电磁阀，或，若干气站或者水站、输送支管和电磁阀，每一所述截流装置的入口通过所述输送支管与一所述气站或者水站相连， 且每一所述输送支管设有所述电磁阀。
在上述技术方案的基础上，一种排水管道的冲洗方法，使用上述任一项所述的冲洗、检修系统，沿排水管道设置N截流装置，从下游向上游依次为第1截流装置、第2截流装置…第N截流装置，将所述排水管道分割成N+1段，从下游向上游依次为第1段排水管道、第2段排水管道…第N+1段排水管道，S1,冲洗第n段排水管道前，第n截流装置充气或充水，流通通道关闭，其他截流装置放气或放水处于开启状态，1≤n≤N，第n+1段排水管道及其上游的排水管道蓄水，第n段排水管道及其下游的排水管道排空；S2,第n截流装置放气或放水，流通通道打开，第n+1段排水管道及其上游的排水管道内蓄水冲洗第n段排水管道及其下游的排水管道；重复S1和S2的步骤，从下游向上游依次冲洗第1段排水管道、第2段排水管道至第N段排水管道。
在上述技术方案的基础上，所述第n截流装置的上游和下游均设有液位传感器，所述液位传感器实时监测所述第n截流装置上游和下游的液位，分别为第一液位值和下游的第二液位值并计算第一液位值和第二液位值的差值得到液位差，预设液位差阈值；当液位差达到所述液位差阈值，控制第n截流装置放气或放水，流通通道打开，第n+1段排水管道及其上游的排水管道内蓄水冲洗第n段排水管道及其下游的排水管道。
在上述技术方案的基础上，一种排水管道的检修方法，使用如权利要求1至8任一项所述的冲洗、检修系统，沿排水管道设置N截流装置，从下游向上游依次为第1截流装置、第2截流装置…第N截流装置，将所述排水管道分割成N+1段，从下游向上游依次为第1段排水管道、第2段排水管道…第N+1段排水管道；根据需要检修第n段排水管道时，将第n截流装置和第n+1截流装置关闭，第n段排水管道排空；根据需要检修某几段连续排水管道时，将靠近排水管道的最下游一端和最上游一端的截流装置关闭，排水管道排空。
与现有技术相比，本发明的优点如下：
(1)本发明一种排水管道的冲洗、检修系统中在排水管道中设置截流装置，截流装置包括外壳体和橡胶套筒，橡胶套筒与外壳体之间形成气腔或水腔，通过橡胶套筒的变形控制流通通道导通或截止，从而控制截流装置关闭或者打开，机械结构简单，控制方便，故障情况少，在完成管道冲洗的同时能够满足行洪要求。
(2)本发明一种排水管道的冲洗、检修系统中的外壳体通过连接套管与其相连的排水管道相连，截流装置安装时从检查井的上部吊装进入检查井内，外壳体的一端通过法兰连接盘与排水管道连接，将连接套管安装于排水管道内，当截流装置吊装到位时，将连接套筒的外端与外壳体通过法兰连接盘连接，留有足够的安装空间，方便安装操作。截流装置安装在检查井中，不需要额外开挖地基，施工效率高，施工成本低。
(3)本发明一种排水管道的冲洗、检修系统中的截流装置还可以用作检修时的阻断使用，用途多样，适用范围广，不需要额外的安装设备，降低检修成本，操作方便。
(4)本发明一种排水管道的冲洗方法中可以采用液位法和或时间法控制，当上游蓄水高度达到设定液位时，开启截流装置，冲洗截流装置下游的排水管道，依靠截流装置上下游的液位差的势能瞬时转化为冲洗的动能，冲洗下游的排水管道，冲洗效果好，定期自动冲洗，自动化程度高。
附图说明
图1为本发明使用状态下的结构示意图。
图2为本发明某一检查井的俯视图。
图3为本发明中截流装置安装在进出口处的结构示意图。
图4为本发明中截流装置安装在出水口处的结构示意图。
附图标记：1-检查井，10-进水口，11-出水口，2-截流装置，20-外壳体，21-橡胶套筒，22-水流通道，23-法兰连接盘，24-连接套管，3- 排水管道。
具体实施方式
下面结合附图及具体实施例对本发明作进一步的详细描述。
实施例1
参见图1和图2所示，本发明提供一种排水管道的冲洗、检修系统，具有倾斜设置的排水管道3，沿排水管道3间隔设置若干检查井1和若干截流装置2，其中截流装置2设置的个数根据排水管道3的倾斜度和长度不同而设定，本实施例中，检查井1包括井体结构和设有连接其上游排水管道的进水口10和连接其下游排水管道的出水口11，本实施例中定义当排水管道输送水时，以截流装置2所在位置的水流流过时间为参照点，在此时间之前流过的管径为上游排水管道，在此时间之后流过的管径为下游排水管道。
一截流装置2安装于一检查井1内，截流装置2包括外壳体20和橡胶套筒21，橡胶套筒21安装于外壳体20内，橡胶套筒21与外壳体20之间形成气腔或者水腔，橡胶套筒21具有水流通道22，水流通道22的一端通过进水口10连通上游排水管道；另一端通过出水口11连通下游排水管道；作为变形，本实施例中的橡胶套筒21采用一体结构截面成环形其内部设有气腔或者水腔，橡胶套筒21安装于外壳体20内；
当气腔或者水腔充气或充水时，橡胶套筒21形变，水流通道22的截面积变小，上游排水管道和下游排水管道截止，当气腔或者水腔放气或放水时，橡胶套筒21恢复形变，水流通道22的截面积变大，截流装置2上游排水管道与下游排水管道导通，其中，橡胶套筒21恢复至无形变状态下的水流通道22的底部与其上游排水管道的底部齐平。
进一步地，外壳体20与排水管道的连接方式如下：可以在外壳体20的两端分别设有法兰连接盘23，外壳体20的两端通过法兰连接盘23与排水管道相连。作为优选地，参见图1所示，将外壳体20安装于检查井1内，外壳体20的上游一端通过法兰连接盘23与其上游的排水管道 相连，外壳体20下游或上游一端设有连接套管24，连接套管24靠近外壳体20的一端通过法兰连接盘23与外壳体20的一段相连，连接套管24的另一端套设在与其相连的排水管道内。截流装置2安装时从检查井1的上部吊装进入检查井内，外壳体20的一端通过法兰连接盘23与排水管道连接，且橡胶套筒21的底部与上游排水管道的底部齐平，连接套筒21将橡胶套筒21的底部于下游排水管道的底部平滑过渡连接，安装时，将连接套管24预先安装于排水管道内，当截流装置2吊装到位时，将连接套筒24的外端与外壳体20通过法兰连接盘23连接，留有足够的安装空间，方便安装操作，无需开挖地基，施工效率高，成本低。参见图3所示，还可以为，外壳体20安装于进水口10内，且外壳体20的上游一端通过法兰连接盘23与其上游排水管道对接相连，外壳体20的下游一端位于检查井2内。参见图4所示，也可以为，外壳体20安装在出水口11内，且外壳体20的下游一端通过法兰连接盘23与其下游排水管道对接相连，外壳体20的上游一端位于检查井2内。作为本实施例的变形，外壳体20与排水管道的连接方式具有多样性，除本实施例中的法兰连接盘连接外，还可以通过焊接、卡接、耦合等方式进行连接。
进一步地，该系统还包括：气站或者水站、输送干管、输送支管和电磁阀，输送干管与气站或者水站相连，每一截流装置2的入口通过输送支管与输送干管相连，且每一输送支管设有电磁阀。本实施例中多个截流装置2共同使用一个气站或者水站，节约能源，占地面积小。或者，设置若干气站或者水站、输送支管和电磁阀，每一截流装置2的入口通过输送支管与一气站或者水站相连，且每一输送支管设有所述电磁阀。
进一步地，该系统还包括控制系统：该系统包括液位传感器和控制器，液位传感器分别设置于截流装置2的上游和下游，用于监测截流装置2上游排水管的液位和下游排水管的液位；控制器分别连接液位传感器和截流装置2，控制器内设有液位差阈值，控制器用于控制截流装置 2关闭，流通通道22截止，截流装置2上游排水管蓄水，当液位传感器监测到截流装置2上游排水管的液位和下游排水管的液位的液位差值达到液位差阈值，控制该截流装置2打开，流通通道22导通，上游排水管内的蓄水冲洗该截流装置2下游排水管。通过控制器和液位传感器自动控制截流装置2打开或关闭，操作简单自动化程度高。本实施例中的液位传感器分别安装于与截流装置2上游排水管道连通的检查井内和与截流装置2下游排水管道连通的检查井内。本实施例中的液位传感器从《西门子超声波液位计选型手册》根据实际使用情况进行选型，控制器从《PLC选型手册》中根据实际使用情况进行选型。
进一步地，控制器内还设置有冲洗周期，所述冲洗周期是指所有排水管道完成一次冲洗后与所有排水管道进行下一次冲洗开启之间的时间间隔，所述控制器用于根据所述冲洗周期控制所述排水管道定期冲洗，控制器从最后一截流装置开启后开始计时。设置定期自动冲洗，避免排水管道内的淤泥淤积，保证冲洗效果，自动化程度高。
实施例2
本实施例2提供一种排水管道的冲洗方法，沿排水管道设置N截流装置2，从下游向上游依次为第1截流装置、第2截流装置…第N截流装置，将排水管道分割成N+1段，从下游向上游依次为第1段排水管道、第2段排水管道…第N+1段排水管道；
S1,冲洗第n段排水管道前，第n截流装置充气或充水，流通通道关闭，其他截流装置放气或放水处于开启状态，1≤n≤N，第n+1段排水管道及其上游的排水管道蓄水，第n段排水管道及其下游的排水管道排空；
S2,第n截流装置放气或放水，流通通道打开，第n+1段排水管道及其上游的排水管道内蓄水冲洗第n段排水管道及其下游的排水管道；
重复S1和S2的步骤，从下游向上游依次冲洗第1段排水管道、第2段排水管道至第N段排水管道，完成一次所有排水管道的冲洗。
其中，第n截流装置的上游和下游均设有液位传感器，S1的控制方法如下：液位传感器实时监测第n截流装置上游和下游的液位，分别为第一液位值和下游的第二液位值并计算第一液位值和第二液位值的差值得到液位差，预设液位差阈值；当液位差达到液位差阈值，控制第n截流装置放气或放水，流通通道打开，第n+1段排水管道及其上游的排水管道内蓄水冲洗第n段排水管道及其下游的排水管道。
进一步地，当第N截流装置截流装置放气或放水，流通通道打开，完成一次所有排水管道的冲洗后，控制器再次控制第1截流装置充气或充水，流通通道关闭，第1截流装置上游排水管道蓄水，为下一次冲洗做准备工作；控制器从第N截流装置截流装置放气或放水完成开始计时，当计时达到设定的冲洗周期，进入下一次冲洗周期。
实施例3
本实施例中提供一种排水管道的检修方法，使用实施例1排水管道的冲洗、检修系统，沿排水管道设置N截流装置2，从下游向上游依次为第1截流装置、第2截流装置…第N截流装置，将排水管道分割成N+1段，从下游向上游依次为第1段排水管道、第2段排水管道…第N+1段排水管道；
根据需要检修第n段排水管道时，将第n截流装置和第n+1截流装置充气或充水关闭，第n段排水管道分别于其上游排水管道和下游排水管道截止，第n段排水管道排空；
根据需要检修某几段连续排水管道时，将排水管道的靠近最下游一端和最上游一端的截流装置均关闭，排水管道排空。
本领域的技术人员可以对本发明实施例进行各种修改和变型，倘若这些修改和变型在本发明权利要求及其等同技术的范围之内，则这些修改和变型也在本发明的保护范围之内。
说明书中未详细描述的内容为本领域技术人员公知的现有技术。

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  1. 一种排水管道的冲洗、检修系统，具有倾斜设置的排水管道(3)，其特征在于：沿所述排水管道(3)间隔设置若干检查井(1)和若干截流装置(2)，所述检查井(1)设有连接其上游排水管道的进水口(10)和连接其下游排水管道的出水口(11)；一所述截流装置(2)安装于一所述检查井(1)内，所述截流装置(2)包括外壳体(20)和橡胶套筒(21)，所述橡胶套筒(21)安装于所述外壳体(20)内，所述橡胶套筒(21)具有水流通道(22)，所述水流通道(22)通过所述进水口(10)和所述出水口(11)分别连通上游排水管道和下游排水管道；当所述截流装置(2)充气或充水时，所述橡胶套筒(21)形变，所述水流通道(22)的截面积变小截止，所述截流装置(2)关闭，上游排水管道与其下游排水管截止，当所述截流装置(2)放气或放水时，所述橡胶套筒(21)恢复形变，所述水流通道(22)的截面积变大导通，所述截流装置(2)开启，上游排水管道与其下游排水管道导通。
  2. 如权利要求1所述的一种排水管道的冲洗、检修系统，其特征在于，还包括控制系统：该控制系统包括液位传感器和控制器，所述液位传感器分别设置于所述截流装置(2)的上游和下游，用于监测所述截流装置(2)上游排水管道的液位和下游排水管道的液位；所述控制器分别连接所述液位传感器和所述截流装置(2)，所述控制器内设有液位差阈值，所述控制器用于控制所述截流装置(2)关闭，所述截流装置(2)上游排水管道蓄水，当所述液位传感器监测到的所述截流装置(2)上游排水管的液位和下游排水管的液位的液位差值达到所述液位差阈值，控制该所述截流装置(2)打开，所述截流装置(2)上游排水管道蓄水冲洗该所述截流装置(2)下游排水管。
  3. 如权利要求2所述的一种排水管道的冲洗、检修系统，其特征在于，所述控制器内还设置有冲洗周期，所述冲洗周期是指所有排水管道完成一次冲洗后与所有排水管道下一次冲洗开启之间的时间间隔，所述控制器用于根据所述冲洗周期控制所述排水管道定期冲洗。
  4. 如权利要求2所述的一种排水管道的冲洗、检修系统，其特征在于：所述液位传感器分别安装于与所述截流装置(2)上游排水管道连通的检查井和与所述截流装置(2)下游排水管道连通的检查井。
  5. 如权利要求1所述的一种排水管道的冲洗、检修系统，其特征在于：所述外壳体(20)的一端与上游排水管道对接，所述外壳体(20)至少部分安装于所述进水口(10)内；或，所述外壳体(20)的一端与下游排水管道对接，所述外壳体至少部分安装于所述出水口(11)内；或，所述外壳体(20)位于所述检查井(1)内，且所述外壳体(20)的两端分别与上游排水管道和下游排水管道对接；或，所述外壳体(20)的两端分别设有法兰连接盘(23)，所述外壳体(20)的两端通过所述法兰连接盘(23)与所述排水管道相连；或，所述外壳体(20)的两端分别设有法兰连接盘(23)，所述外壳体(20)的一端通过所述法兰连接盘(23)与所述排水管道相连，所述外壳体(20)的另一端设有连接套管(24)，所述连接套管(24)靠近所述外壳体(20)的一端通过所述法兰连接盘(23)连接所述外壳体(20)，所述连接套管(24)的另一端套设在与其相连的排水管道内；或，所述外壳体(20)的一端设有法兰连接盘，所述外壳体(20)的一端通过所述法兰连接盘(23)与上游排水管道或下游排水管道的端部连接。
  6. 如权利要求5所述的一种排水管道的冲洗、检修系统，其特征在于：其中，所述橡胶套筒(21)恢复至无形变状态，所述水流通 道(22)的底部与其上游或下游的排水管道的底部平齐。
  7. 如权利要求1所述的一种排水管道的冲洗、检修系统，其特征在于，还包括：气站或者水站、输送干管、输送支管和电磁阀，所述输送干管与所述气站或者水站相连，每一所述截流装置(2)的入口通过所述输送支管与所述输送干管相连，且每一所述输送支管设有所述电磁阀；或，若干气站或者水站、输送支管和电磁阀，每一所述截流装置(2)的入口通过所述输送支管与一所述气站或者水站相连，且每一所述输送支管设有所述电磁阀。
  8. 一种排水管道的冲洗方法，其特征在于：使用如权利要求1至7任一项所述的冲洗、检修系统，沿排水管道设置N截流装置(2)，从下游向上游依次为第1截流装置、第2截流装置…第N截流装置，将所述排水管道分割成N+1段，从下游向上游依次为第1段排水管道、第2段排水管道…第N+1段排水管道；S1,冲洗第n段排水管道前，第n截流装置充气或充水，流通通道关闭，其他截流装置放气或放水处于开启状态，1≤n≤N，第n+1段排水管道及其上游的排水管道蓄水，第n段排水管道及其下游的排水管道排空；S2,第n截流装置放气或放水，流通通道打开，第n+1段排水管道及其上游的排水管道内蓄水冲洗第n段排水管道及其下游的排水管道；重复S1和S2的步骤，从下游向上游依次冲洗第1段排水管道、第2段排水管道至第N段排水管道。
  9. 如权利要求8所述的一种排水管道的冲洗方法，其特征在于：所述第n截流装置的上游和下游均设有液位传感器，所述液位传感器实时监测所述第n截流装置上游和下游的液位，分别为第一液位值和下游的第二液位值并计算第一液位值和第二液位值的差值得到液位差，预设液位差阈值；当液位差达到所述液位差阈值，控制第n截流 装置放气或放水，流通通道打开，第n+1段排水管道及其上游的排水管道内蓄水冲洗第n段排水管道及其下游的排水管道。
  10. 一种排水管道的检修方法，其特征在于：使用如权利要求1至7任一项所述的冲洗、检修系统，沿排水管道设置N截流装置(2)，从下游向上游依次为第1截流装置、第2截流装置…第N截流装置，将所述排水管道分割成N+1段，从下游向上游依次为第1段排水管道、第2段排水管道…第N+1段排水管道；根据需要检修第n段排水管道时，将第n截流装置和第n+1截流装置关闭，第n段排水管道排空；根据需要检修某几段连续排水管道时，将靠近排水管道的最下游一端和最上游一端的截流装置关闭，排水管道排空。
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